Hi Byron, >From the soon to be released K3S book: ======= 10.2.2 Extraneous Keying Signals PC applications, such as logging programs, can activate PTT and keying signals using the RS232 or USB RTS and DTR signals. However, initial setup of the rig's USB port by the PC may cause pulsed or continuous activation of the transmitter. You often hear this beep – beep – beep on the air. This can happen if the computer is turned on after the K3S or if the USB cable is connected after turning on the computer and K3S. Warning Your K3S can lock up in transmit mode under the following conditions: 1. CONFIG:PTT-KEY is set to dtr-rtS, which you might have when using a logging program to activate PTT or send CW, and 2. You are using the USB port to control the radio, and 3. You turn on the K3S before you turn on the computer, or 4. The radio is not plugged into an active USB port. The combination of PTT-KEY being dtr-rtS plus an inactive USB port generates PTT and keying signals on the DTR and RTS signal lines. Tap the XMIT switch to stop it from transmitting. You will see ERR PTT or ERR KEY in the VFO B area. Enter the DTR-RTS menu and tap 1 to display USB.SAFE and then turn the K3S off and then back on. There are several steps you can take to prevent this from happening: 1. If you do not need computer generated keying using DTR and RTS, set CONFIG:DTR-KEY to OFF-OFF. 2. If you do use DTR and RTS keying, enter the DTR-RTS menu and tap 1 to display USB.SAFE. This action sets DTR-RTS to OFF-OFF until the K3S verifies that the USB connection is active. This is described in more detail below. 3. Use a WinKeyer, such as K1EL’s WKUSB to send CW via the K3S KEY jack so that CONFIG:PTT-KEY can be set to OFF-OFF. USB Safe Mode "Safe" mode disables PTT or keying transmissions until the K3S receives a command via USB, such as a read of the rig's VFO frequency. To turn on safe mode, go into CONFIG:PTT-KEY and tap 1 to select USB.SAFE. Exit the menu and turn the radio off/on. Applications that use PTT-KEY but don't send commands will require UNSAFE mode (the default). In this case, be sure to turn the PC on before the K3S. PTT or Keying Transmit Override You can override transmitting due to a persistent PTT or keying signal applied by a PC. If the K3S transmits unexpectedly, tap the XMIT switch. This will exit transmit mode and show ERR KEY or ERR PTT on VFO B. Once the PTT or keying source as been removed, transmit will be re-enabled. You may have to shut the K3S down and wait until the PC boots up.
Cheers and 73, Fred KE7X Author of: "The Elecraft K3: Design, Configuration and Operation 2nd ed" "The Portable Elecraft KX3 – Going for the Summit with the KX3 and KX3-2M/4M" “The Elecraft KX-Line – The Complete Station” “The Elecraft KPA500 and KAT500 – the K-Line Dream Station” Printed, coil bound copies of these are all available at www.elecraft.com KPA500 and KAT500 Quick Set Up Guide http://www.ke7x.com/home/k-line-introduction-and-set-up-guide KAT500 and KXPA500 Tuner Operation http://www.ke7x.com/home/kat500-and-kxpa100-tuners “The Elecraft KXPA100, PX3 and 2M/4M Transverters – Assembling the KX3-Line Station” printed copy available at www.lulu.com and pdf from www.ke7x.com. “The Elecraft K3S and P3 – Getting the Most out from Your High Performance Station” coming very soon. Plus a book dedicated to the K3S upgrades for the K3 and a 3rd Edition of the K3 book are works in progress. ________________________________________ From: Elecraft <elecraft-boun...@mailman.qth.net> on behalf of Byron Peebles <n...@arrl.net> Sent: Monday, October 12, 2015 1:04 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3S ERR KEY in VFO-B I don't see any instructions in how to acknowledge and clear the ERR KEY message from VFO B. As a result, I'm walking through MENU and CONFIG using K3 Utility macros. This ERR KEY is happening during power on with no USB no KEY and no P3 connected, so I'd like to clear the message so I can spin through the settings menus faster.. Anyone? 73, Byron ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to fc...@montana.edu ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
